CVE-2009-4141

Summary

CVECVE-2009-4141
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2010-01-19 16:30:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionUse-after-free vulnerability in the fasync_helper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling O_ASYNC (aka FASYNC or FIOASYNC) on a locked file, and then closing this file.

Risk And Classification

Primary CVSS: v2.0 7.2 from [email protected]

AV:L/AC:L/Au:N/C:C/I:C/A:C

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:L/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel 2.6.0 All All All
Operating System Linux Linux Kernel 2.6.1 All All All
Operating System Linux Linux Kernel 2.6.10 All All All
Operating System Linux Linux Kernel 2.6.11 All All All
Operating System Linux Linux Kernel 2.6.11.1 All All All
Operating System Linux Linux Kernel 2.6.11.10 All All All
Operating System Linux Linux Kernel 2.6.11.11 All All All
Operating System Linux Linux Kernel 2.6.11.12 All All All
Operating System Linux Linux Kernel 2.6.11.2 All All All
Operating System Linux Linux Kernel 2.6.11.3 All All All
Operating System Linux Linux Kernel 2.6.11.4 All All All
Operating System Linux Linux Kernel 2.6.11.5 All All All
Operating System Linux Linux Kernel 2.6.11.6 All All All
Operating System Linux Linux Kernel 2.6.11.7 All All All
Operating System Linux Linux Kernel 2.6.11.8 All All All
Operating System Linux Linux Kernel 2.6.11.9 All All All
Operating System Linux Linux Kernel 2.6.12 All All All
Operating System Linux Linux Kernel 2.6.12.1 All All All
Operating System Linux Linux Kernel 2.6.12.2 All All All
Operating System Linux Linux Kernel 2.6.12.3 All All All
Operating System Linux Linux Kernel 2.6.12.4 All All All
Operating System Linux Linux Kernel 2.6.12.5 All All All
Operating System Linux Linux Kernel 2.6.12.6 All All All
Operating System Linux Linux Kernel 2.6.13 All All All
Operating System Linux Linux Kernel 2.6.13.1 All All All
Operating System Linux Linux Kernel 2.6.13.2 All All All
Operating System Linux Linux Kernel 2.6.13.3 All All All
Operating System Linux Linux Kernel 2.6.13.4 All All All
Operating System Linux Linux Kernel 2.6.13.5 All All All
Operating System Linux Linux Kernel 2.6.14 All All All
Operating System Linux Linux Kernel 2.6.14.1 All All All
Operating System Linux Linux Kernel 2.6.14.3 All All All
Operating System Linux Linux Kernel 2.6.14.4 All All All
Operating System Linux Linux Kernel 2.6.14.5 All All All
Operating System Linux Linux Kernel 2.6.14.6 All All All
Operating System Linux Linux Kernel 2.6.14.7 All All All
Operating System Linux Linux Kernel 2.6.15 All All All
Operating System Linux Linux Kernel 2.6.15.1 All All All
Operating System Linux Linux Kernel 2.6.15.2 All All All
Operating System Linux Linux Kernel 2.6.15.3 All All All
Operating System Linux Linux Kernel 2.6.15.4 All All All
Operating System Linux Linux Kernel 2.6.15.5 All All All
Operating System Linux Linux Kernel 2.6.15.6 All All All
Operating System Linux Linux Kernel 2.6.15.7 All All All
Operating System Linux Linux Kernel 2.6.16 All All All
Operating System Linux Linux Kernel 2.6.16.1 All All All
Operating System Linux Linux Kernel 2.6.16.10 All All All
Operating System Linux Linux Kernel 2.6.16.11 All All All
Operating System Linux Linux Kernel 2.6.16.12 All All All
Operating System Linux Linux Kernel 2.6.16.13 All All All
Operating System Linux Linux Kernel 2.6.16.14 All All All
Operating System Linux Linux Kernel 2.6.16.15 All All All
Operating System Linux Linux Kernel 2.6.16.16 All All All
Operating System Linux Linux Kernel 2.6.16.17 All All All
Operating System Linux Linux Kernel 2.6.16.18 All All All
Operating System Linux Linux Kernel 2.6.16.19 All All All
Operating System Linux Linux Kernel 2.6.16.2 All All All
Operating System Linux Linux Kernel 2.6.16.20 All All All
Operating System Linux Linux Kernel 2.6.16.21 All All All
Operating System Linux Linux Kernel 2.6.16.22 All All All
Operating System Linux Linux Kernel 2.6.16.23 All All All
Operating System Linux Linux Kernel 2.6.16.24 All All All
Operating System Linux Linux Kernel 2.6.16.25 All All All
Operating System Linux Linux Kernel 2.6.16.26 All All All
Operating System Linux Linux Kernel 2.6.16.27 All All All
Operating System Linux Linux Kernel 2.6.16.28 All All All
Operating System Linux Linux Kernel 2.6.16.29 All All All
Operating System Linux Linux Kernel 2.6.16.3 All All All
Operating System Linux Linux Kernel 2.6.16.30 All All All
Operating System Linux Linux Kernel 2.6.16.31 All All All
Operating System Linux Linux Kernel 2.6.16.4 All All All
Operating System Linux Linux Kernel 2.6.16.5 All All All
Operating System Linux Linux Kernel 2.6.16.6 All All All
Operating System Linux Linux Kernel 2.6.16.7 All All All
Operating System Linux Linux Kernel 2.6.16.8 All All All
Operating System Linux Linux Kernel 2.6.16.9 All All All
Operating System Linux Linux Kernel 2.6.17 All All All
Operating System Linux Linux Kernel 2.6.17.1 All All All
Operating System Linux Linux Kernel 2.6.17.10 All All All
Operating System Linux Linux Kernel 2.6.17.11 All All All
Operating System Linux Linux Kernel 2.6.17.12 All All All
Operating System Linux Linux Kernel 2.6.17.13 All All All
Operating System Linux Linux Kernel 2.6.17.14 All All All
Operating System Linux Linux Kernel 2.6.17.2 All All All
Operating System Linux Linux Kernel 2.6.17.3 All All All
Operating System Linux Linux Kernel 2.6.17.4 All All All
Operating System Linux Linux Kernel 2.6.17.5 All All All
Operating System Linux Linux Kernel 2.6.17.6 All All All
Operating System Linux Linux Kernel 2.6.17.7 All All All
Operating System Linux Linux Kernel 2.6.17.8 All All All
Operating System Linux Linux Kernel 2.6.17.9 All All All
Operating System Linux Linux Kernel 2.6.18.1 All All All
Operating System Linux Linux Kernel 2.6.18.2 All All All
Operating System Linux Linux Kernel 2.6.18.3 All All All
Operating System Linux Linux Kernel 2.6.18.4 All All All
Operating System Linux Linux Kernel 2.6.18.5 All All All
Operating System Linux Linux Kernel 2.6.18.6 All All All
Operating System Linux Linux Kernel 2.6.18.7 All All All
Operating System Linux Linux Kernel 2.6.18.8 All All All
Operating System Linux Linux Kernel 2.6.2 All All All
Operating System Linux Linux Kernel 2.6.22 All All All
Operating System Linux Linux Kernel 2.6.22.2 All All All
Operating System Linux Linux Kernel 2.6.22.3 All All All
Operating System Linux Linux Kernel 2.6.22.4 All All All
Operating System Linux Linux Kernel 2.6.22.5 All All All
Operating System Linux Linux Kernel 2.6.22.6 All All All
Operating System Linux Linux Kernel 2.6.22.7 All All All
Operating System Linux Linux Kernel 2.6.23 All All All
Operating System Linux Linux Kernel 2.6.23 rc1 All All
Operating System Linux Linux Kernel 2.6.23 rc2 All All
Operating System Linux Linux Kernel 2.6.23.1 All All All
Operating System Linux Linux Kernel 2.6.23.2 All All All
Operating System Linux Linux Kernel 2.6.23.3 All All All
Operating System Linux Linux Kernel 2.6.23.4 All All All
Operating System Linux Linux Kernel 2.6.23.5 All All All
Operating System Linux Linux Kernel 2.6.23.6 All All All
Operating System Linux Linux Kernel 2.6.23.7 All All All
Operating System Linux Linux Kernel 2.6.24 rc1 All All
Operating System Linux Linux Kernel 2.6.24 rc2 All All
Operating System Linux Linux Kernel 2.6.24 rc3 All All
Operating System Linux Linux Kernel 2.6.24 rc4 All All
Operating System Linux Linux Kernel 2.6.24 rc5 All All
Operating System Linux Linux Kernel 2.6.3 All All All
Operating System Linux Linux Kernel 2.6.32 All All All
Operating System Linux Linux Kernel 2.6.32.1 All All All
Operating System Linux Linux Kernel 2.6.32.2 All All All
Operating System Linux Linux Kernel 2.6.32.3 All All All
Operating System Linux Linux Kernel 2.6.32.4 All All All
Operating System Linux Linux Kernel 2.6.33 rc1 All All
Operating System Linux Linux Kernel 2.6.33 rc2 All All
Operating System Linux Linux Kernel 2.6.33 rc3 All All
Operating System Linux Linux Kernel 2.6.4 All All All
Operating System Linux Linux Kernel 2.6.5 All All All
Operating System Linux Linux Kernel 2.6.6 All All All
Operating System Linux Linux Kernel 2.6.7 All All All
Operating System Linux Linux Kernel 2.6.8 All All All
Operating System Linux Linux Kernel 2.6.8.1 All All All
Operating System Linux Linux Kernel 2.6.9 All All All
Operating System Linux Linux Kernel All rc4 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
rhn.redhat.com | Red Hat Support af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
[security-announce] SUSE Security Announcement: Linux kernel (SUSE-SA:20 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
Linux Kernel 'fasync_helper()' Local Privilege Escalation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
Red Hat update for kernel-rt - Advisories - Community af854a3a-2127-422b-91ae-364da2661108 secunia.com
Linux Kernel FASYNC Use-After-Free Privilege Escalation Vulnerability - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
404: File not found af854a3a-2127-422b-91ae-364da2661108 www.kernel.org Patch
Bug 547906 – CVE-2009-4141 kernel: create_elf_tables can leave urandom in a bad state af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
404 Not Found af854a3a-2127-422b-91ae-364da2661108 lock.cmpxchg8b.com Exploit
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
ASA-2010-026 (RHSA-2010-0046) af854a3a-2127-422b-91ae-364da2661108 support.avaya.com
Tavis Ormandy na Twitterze: "CVE-2009-4141 is out, a nice Linux kernel use-after-free (local root). Patch is here http://bit.ly/7Qkfw0, vendors will likely update today." af854a3a-2127-422b-91ae-364da2661108 twitter.com Patch
archives.neohapsis.com/archives/fulldisclosure/2010-01/0252.html af854a3a-2127-422b-91ae-364da2661108 archives.neohapsis.com Exploit
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
Red Hat Customer Portal MITRE access.redhat.com
Red Hat Customer Portal MITRE access.redhat.com
Red Hat Customer Portal - Access to 24x7 support and knowledge MITRE access.redhat.com
access.redhat.com | CVE-2009-4141 MITRE access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

OrganizationPublishedContributorStatement
Red Hat2010-01-21Tomas HogerThis issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 3, 4 and Red Hat Enterprise MRG. Shipped kernels do not include upstream commit 233e70f4 that introduced the problem. It was addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2010-0046.html
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